drupal and islandora docs in solr

islandora-objects-drupal-nodes-solr

function <theme name>_preprocess_islandora_solr(&$vars) {
  foreach($vars['results'] as &$doc) {
    if(isset($doc['some key that only nodes have'])) {
      $doc['thumbnail'] = 'static or node image';
      $doc['object_url'] = 'url for node';
    }
  }
}